Four minutes were added on at the end of the second half and with seconds left, Darren Anderton was judged to have handled Steve Stone's deep cross and Juan Pablo Angel made no mistake from the penalty spot to make it 1-1. There was only time to kick off.
The loss of maximum points was somewhat harsh after a superb display in the first half when we arguably deserved more than Les Ferdinand's goal and a 1-0 lead.
Villa pushed on searching for a goal but barely carved out a clear-cut chance until they were handed their get out of jail card.
Glenn said: "It was two points lost and what disappoints and baffles me is that four minutes were added on when neither trainer had been on the pitch.
"I was very surprised to see that amount of time on the electronic board. There were only four substitutions, not six, and we should have been off the pitch before Darren did what he did.
"That has cost us but we also cost ourselves because we controlled the game in the first half and should have been more than 1-0 up at half-time.
"We defended superbly in the second half and didn't deserve what happened in the last minute.
"Darren is adamant that it was not deliberate. The ball hit his hand, yes, but it was not deliberate hand-ball."
Glenn insisted that handball incident was the last thing Darren deserved after another fine display - his range of passing, especially in the first half, was a joy to watch.
"Darren didn't justify that happening to him," added Glenn. "He was superb again and even in the last few games I felt, when we lost and not been at our best, Darren was one of our better players.
"His standard of consistency is there for all to see and I'm delighted with that. He didn't deserve that to happen with the performance he put in."
Paul Miles at Villa Park
Glenn Hoddle was left baffled at the amount of injury time added on as Aston Villa grabbed a late, late equaliser at Villa Park on Saturday.